Appetite, craving for food, is a constant and powerful stimulator of the gastric glands.
- Ivan Pavlov Quote

But man has still another powerful resource: natural science with its strictly objective methods.
- Ivan Pavlov Quote

Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly through the tube leading from the mouth into the stomach.
- Ivan Pavlov Quote

Finally, as the digestive canal is a complex system, a series of separate chemical laboratories, I cut the connections between them in order to investigate the course of phenomena in each particular laboratory; thus I resolved the digestive canal into several separate parts.
- Ivan Pavlov Quote

From the described experiment it is clear that the mere act of eating, the food even not reaching the stomach, determines the stimulation of the gastric glands.
- Ivan Pavlov Quote

It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients.
- Ivan Pavlov Quote

It is clear to all that the animal organism is a highly complex system consisting of an almost infinite series of parts connected both with one another and, as a total complex, with the surrounding world, with which it is in a state of equilibrium.
- Ivan Pavlov Quote

It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all living things, man included, with the surrounding nature.
- Ivan Pavlov Quote

Our experiments not only proved the existence of a nervous apparatus in the above-mentioned glands, but also disclosed some facts clearly showing the participation of these nerves in normal activity.
- Ivan Pavlov Quote

Our success was mainly due to the fact that we stimulated the nerves of animals that easily stood on their own feet and were not subjected to any painful stimulus either during or immediately before stimulation of their nerves.
- Ivan Pavlov Quote

Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise.
- Ivan Pavlov Quote

Physiology has, at last, gained control over the nerves which stimulate the gastric glands and the pancreas.
- Ivan Pavlov Quote

Thanks to our present surgical methods in physiology we can demonstrate at any time almost all phenomena of digestion without the loss of even a single drop of blood, without a single scream from the animal undergoing the experiment.
- Ivan Pavlov Quote

The physiologist who succeeds in penetrating deeper and deeper into the digestive canal becomes convinced that it consists of a number of chemical laboratories equipped with various mechanical devices.
- Ivan Pavlov Quote

While you are experimenting, do not remain content with the surface of things.
- Ivan Pavlov Quote